If age groups/gender represents independent variable(s) and responses have been collected for 5-6 items in the form of ranking (most preferred - rank 1 to least preferred rank - 5). Which test is an ...

At work, I have been tasked with taking all of the relevant information regarding our production lines in order to determine the efficiency of all of our assembly lines. Below is some of the criteria ...

If I have a table of values in Matlab ( here I have a 40k rows, and about a dozen columns), how can I read only particular values from each row? My goal is to extract some of the values from each row, ...

Could somebody please advise me on the best approach to take to find the intersection points of 2 paths. Each path is a data set of distance against time (I want to avoid curve fitting) and each path ...

I am working in Excel and have two sets of data points that come up with a percentage for the likelihood of a recession. I am wondering what the best strategy would be to combine these data points? ...

I was hoping someone knows the solution or has an alternative form of approach. tried this out over on /r/askmath with little response.
Ok I will attempt to be as clear and as simple as possible. I ...

I'm doing a little bit of topic modelling (which is not really my area) with twitter tweets.
The situation is the following: I have a (sort of) covariance matrix where the entrie $C_{ij}$ corresponds ...

I am aware of many different ways to go about interpolating between the values of known data points. However, whenever I come upon (I work in Quantitative Finance) the need to extrapolate data I find ...

I have a dataset for which I had to apply Wang-Mendel algorithm. The aim is to find the y value when x=14. I granulized and approximated the data and found the rules in the Mamdani format. Now I have ...

I've read the paper Least square fitting of a Gaussian function to a histogram by Leo Zhou on how to perform a Least Square Fitting of a gaussian function to a histogram.
The Gaussian function used ...

In data analysis, when are the use of these different means appropriate?
For example, I'm using data to infer the peak of waveforms at different points around a semicircle. If my data has intensity ...

I understand that fractal geometry represents behaviour of 'chaotic' system, if I am not wrong. And also, fractals are generated by a recursive function.
But, lets say I have random data lying with ...

I'm working often with spectral data of various gases, and the bulk of the data analysis is assigning the peaks with maximum signal (y-axis) to frequency (x-axis). Often we have several thousand data ...

Currently, I am into Link Analysis in data mining. I am kind of having a hard time to understand the Link Analysis. I have studied Association Rules and this is my next goal to understand. I have been ...

Perhaps the most primitive (and yet very effective) way of estimating a density is by using a histogram. In a histogram, we can manage the 'precision' of the distribution by adjusting the number of ...

Given a following table named BOOKING, which contains three columns, guest_name, room_number and booking_date, how do I find the all the guest_name that have the same room_number and booking_date?
I ...